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FANUC Series 20 A20B-1003-0340

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A20B-1003-0340

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The A20B-1003-0340 PCB from FANUC serves as an interface for CRT and keyboard systems. Designed for compatibility with FANUC 16, 18, and 21 series CNC systems, this module fits easily into a horizontal rack slot with rear access for I/O.

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Technical specifications for A20B-1003-0340

ManufacturerFANUC
Product TypeCRT/Keyboard Interface PCB
Product LineSeries 20
Part NumberA20B-1003-0340
Weight1.38 lbs (0.62 kg)
Installation OrientationHorizontal rack slot, rear I/O access
Cooling MethodPassive convection
Operating Temperature0°C to 60°C
Voltage Rating5V DC logic / 24V DC
Signal TypeTTL-level digital + analog CRT sync
Compatible SystemsFANUC 16/18/21 Series CNC
Connector Type20-pin ribbon + 34-pin D-sub
Mounting TypePCB slot-mount (rack-integrated)
Board FunctionCRT signal + keyboard input processing
Humidity95% or less (non-condensing)
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The FANUC A20B-1003-0340 is a specialized printed circuit board designed for CRT and keyboard interfacing applications. It is installed horizontally in a rack slot, allowing for easy rear I/O access. The module relies on passive convection for cooling during operation. It can function effectively across a temperature range from 0°C to 60°C.

This board operates with a dual voltage rating: 5V DC for logic and 24V DC overall. It handles TTL-level digital signals alongside analog CRT synchronization, facilitating precise communication between connected devices. Compatibility extends to the FANUC 16, 18, and 21 series CNC systems.

Connectivity options include a 20-pin ribbon connector and a 34-pin D-sub connector. The dimensions of the board are 330 mm in length and 210 mm in width, contributing to a total weight of 1.13 kg (2.49 lbs.), making it a manageable component for installation. The board is specifically designed for slot mounting in racks, supporting integration into existing systems.

Additionally, the A20B-1003-0340 PCB is fitted in large I series AC spindle drives, performing essential functions related to CRT signal processing and keyboard input. It is rated for operation in environments with a maximum relative humidity of 95% (non-condensing), ensuring reliable functionality even under humid conditions.